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Mon 7th Sep 2020 - New From Micromech: Designed for Medical Ventilators…The new Brushless DC Servo Drive Module from Trinamic.

With the TMC4671 TMC6100-TOSV-REF, Trinamic introduces an open-source reference design for medical ventilators. Combining the TMC4671 and TMC6100, the compact module is the ideal solution for shortening time-to-market of crucial equipment.
 
Trinamic - TMC4671-TMC6100

Combining the TMC4671 and TMC6100-TOSV-REF board creates a BLDC servo driver capable of 12…36V with up to 6A RMS to accommodate medical ventilators or respiratory systems. To speed up design cycles even further, the open-source module features an SBC connector in Raspberry Pi style and space for a pressure sensor add-on board.

As automatic ventilators must be equipped with appropriate sensor technology for monitoring and reacting to changes such as pressure flow, volume, and respiration rate, the module comes with a HALL sensor interface and connectors for an optional pressure sensor add-on board. This important data can directly be visualized on a Raspberry Pi with touch screen using the free, open-source firmware developed for the reference design module by Trinamic.
Providing fast and dynamic control of low-induction BLDC motors can be exceptionally challenging. It requires careful consideration of the trade-off between high switching frequency and current ripples and their consequent switching and stator losses, respectively. Thanks to the embedded TMC4671 servo controller IC, the module generates a PWM frequency and current controller clock of 100 kHz independent of the microcontroller. With this, the current consumption of the system is reduced, with no performance penalty, by up to 15 percent when compared to a frequency of 25 kHz.

As previously mentioned, an add-on board for I2C and analog sensors allows support for pressure sensors from various manufacturers. The TMC4671 TMC6100-TOSV-REF can be plugged into a single-board computer to access the user interface and high-level control functions. 

All hardware, firmware, and software is open-source under the MIT license.

Features and Benefits:
  • Single-axis BLDC servo driver for up to 6A RMS / phase
  • Supply Voltage 12V..36V
  • Integrated overvoltage protection
  • HALL sensor interface
  • Onboard temperature sensor
  • Digital I/O and analog inputs
  • Add-on board connector for standard or custom sensor interface board
  • Raspberry Pi connector for external SBC

For more information on the TMC4671 TMC6100-TOSV-REF or any other Trinamic products contact Micromech on 01376 333333 or sales@micromech.co.uk
 
 
Disclaimer
The use of this news article and images came with permission from Trinamic.